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ou vs. uh

ou
[oh-oo] / ˈoʊˈu /
Or 'o'u

noun

  1. a rare Hawaiian honeycreeper, Psittirostra psittacea, having an olive-green body, a parrotlike bill, and in the male a bright yellow head.

uh
[uh, uhn] / ʌ, ʌ̃ /

interjection

  1. (used to indicate hesitation, doubt, or a pause.)

  2. huh.